NEC
TJ Checklist items:
Line 1 & 2 able to make outbound calls from each phone, and able to receive inbound calls and be answered on each phone.
Inbound Caller id working ?
Incoming calls ring Night Bell during after hours
Receiving call box
Paging overhead to Sales floor and Stock room work as intended
Music on hold working
Telephone names and extension numbers match location of phone
Telephone System Speed dials correct